EP 0155569 B2 19911227 - DEVICE FOR MATCHING A BIDIRECTIONAL AMPLIFYING CIRCUIT ARRANGED IN A TRANSMISSION LINE WITH THE TRANSMISSION LINE
Title (en)
DEVICE FOR MATCHING A BIDIRECTIONAL AMPLIFYING CIRCUIT ARRANGED IN A TRANSMISSION LINE WITH THE TRANSMISSION LINE
Publication
Application
Priority
DE 3409880 A 19840317
Abstract (en)
[origin: EP0155569A2] 1. Device for matching a bidirectional amplifying circuit arranged in a telecommunication line to the telecommunications line, the amplifying circuit having two separate amplifiers (V1 and V2) in a termination amplifying circuit, one for each direction of speech, characterized in that the transition attenuation of each termination circuit (G1, G2) is increased by ending the termination circuit with a balancing network (NB) containing an inductance (U, Dr) whose value corresponds to the inductance of the local line transformer (OLU) nearest to the termination circuit (G1, G2) in the telecommunications line.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H04B 1/582 (2013.01); H04B 3/38 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0155569 A2 19850925; EP 0155569 A3 19861120; EP 0155569 B1 19890125; EP 0155569 B2 19911227; AT E40500 T1 19890215; DE 3409880 A1 19850919; DE 3567996 D1 19890302
DOCDB simple family (application)
EP 85102299 A 19850301; AT 85102299 T 19850301; DE 3409880 A 19840317; DE 3567996 T 19850301